Schumacher's mother in coma

Berlin - The mother of Formula One drivers Michael and Ralf Schumacher is in a coma, according to German daily Bild Zeitung, citing younger brother Ralf.

Elisabeth Schumacher, 55, fell at home last Saturday and had to undergo an emergency operation in Cologne (ouest).

"Her condition is certainly stable but we're still very worried about her," Ralf Schumacher was reported as saying to the newspaper from Imola, where on Sunday the fourth race of the world championship will be held.

"Of course, in the circumstances we've been wondering if we should be racing at all," added Ralf. "But we are in permanent contact with the doctors." - Sapa-AFP